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RE: Define: Fall Back

From: DESCHAMPS Stephane ROSI/SI CLIENT <stephane.deschamps@orange-ftgroup.com>
Date: Tue, 3 Jul 2007 15:09:01 +0200
To: <joshue.oconnor@cfit.ie>, <public-html@w3.org>
Message-ID: <004901c7bd73$5341ac10$4111b30a@stquentiny.francetelecom.fr>


> -----Message d'origine-----
> De la part de Joshue O Connor
> Envoyé : lundi 2 juillet 2007 11:30
> À : Anne van Kesteren
> Cc : public-html@w3.org
> Objet : Re: Define: Fall Back
> 
> 
> Anne van Kesteren wrote:
> > On Mon, 02 Jul 2007 10:50:01 +0200, Joshue O Connor 
> <joshue.oconnor@cfit.ie> wrote:
> >> Basically does the term (in WG usage) refer content for 
> elements that 
> >> are not supported by the UA (in this case the browser) or is it 
> >> content for people with disabilities using assistive technology?
> > 
> > It depends. <video src=newsclip>fallback</video> is 
> probably mostly for older browsers as you'd hope the video 
> itself is accessible, but in case of 
> <canvas>fallback</canvas> it is for both I think.
> 
> Thanks Anne.

I kind of remember old HTML pages where one could read <img
src=imagesrc></img>.

Maybe we could think of a general approach for all media with this kind of
simplified <object> scheme:

<video src=newsclip>fallback</video>
<canvas>fallback</canvas>
<img src=imagesrc>fallback</img>

(based on the assumption that when this WG proposed <video> and <audio> you
thought that <object> is too proteiform and thus cannot be - and hasn't been
- properly implemented so far)

By the way, I don't think it's just for older browsers, to get back to
Anne's example. I've deactivated images when surfing on an old 33.6 modem a
few months ago, and would have loved *not* to have been forced to load the
images because no alt was provided anywhere and the images were used as the
only navigational system.

My point is: we may want to disable plugins / images / videos etc. depending
on some context that has nothing to do with AT per se. It's trivially simple
with today's modern browsers for most content (Firefox with the Flash
Switcher extension or the Adblock extension for instance).

-- 
Best regards,
Stéphane Deschamps
  Web HCI expert
  orange / france telecom group


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Received on Tuesday, 3 July 2007 13:09:18 UTC

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